Bug #75088 [NEW]: getTransitions is slow with large values

From: gmblar+php at gmail dot com Operating system: MacOS 10.13 PHP version: 7.1.8 Package: Date/time related Bug Type: Bug Bug description:getTransitions is slow with large values Description: ------------ getTransitions is slow with large negative or positive values. With the default values PHP_INT_MIN and PHP_INT_MAX the function takes a very long time. Test script: --------------- <?php function measure_duration(callable $callback) { $start = microtime(true); call_user_func($callback); $duration = microtime(true) - $start; printf("Duration: %s\n\n", number_format($duration, 6)); } $timezone = new DateTimeZone('Europe/Berlin'); measure_duration(function() use($timezone) { printf("Default Value\n"); $timezone->getTransitions(); }); measure_duration(function() use($timezone) { $timestamp = 0; printf("Timestamp for %s\n", date('Y-m-d H:i:s', $timestamp)); $timezone->getTransitions($timestamp); }); measure_duration(function() use($timezone) { $timestamp = -62135596800; printf("Timestamp for %s\n", date('Y-m-d H:i:s', $timestamp)); $timezone->getTransitions($timestamp); }); Expected result: ---------------- Default Value Duration: 0.000268 Timestamp for 1970-01-01 00:00:00 Duration: 0.000134 Timestamp for 0001-01-01 00:00:00 Duration: 0.000161 Actual result: -------------- Default Value Duration: 0.018967 Timestamp for 1970-01-01 00:00:00 Duration: 0.000101 Timestamp for 0001-01-01 00:00:00 Duration: 0.000095 -- Edit bug report at https://bugs.php.net/bug.php?id=75088&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75088&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75088&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75088&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75088&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75088&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75088&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75088&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75088&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75088&r=support Expected behavior: https://bugs.php.net/fix.php?id=75088&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75088&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75088&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75088&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75088&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75088&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75088&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75088&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75088&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75088&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75088&r=mysqlcfg